public ActionForward execute(
     ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res)
     throws Exception {
   ServiceDataForm obj = (ServiceDataForm) form;
   String serviceId = obj.getServiceId();
   CalculateService obj2 = new CalculateService();
   obj2.calculate(serviceId);
   Connection con = null;
   Class.forName(ConnectionStats.DRIVER);
   String url = ConnectionStats.DB_URL;
   String usr = ConnectionStats.DB_USER;
   String pwd = ConnectionStats.DB_PASSWORD;
   con = DriverManager.getConnection(url, usr, pwd);
   Statement stmt = con.createStatement();
   ResultSet rs = null;
   rs = stmt.executeQuery("select * from " + serviceId + "_main");
   ResultSetMetaData rsmd = rs.getMetaData();
   int col = rsmd.getColumnCount();
   String[] mainHeader = new String[col];
   for (int i = 0; i < col; i++) {
     mainHeader[i] = rsmd.getColumnLabel(i + 1);
   }
   ArrayList<String[]> serviceDataMain = new ArrayList<String[]>();
   while (rs.next()) {
     String[] str = new String[col];
     for (int i = 0; i < col; i++) {
       str[i] = rs.getString(i + 1);
     }
     serviceDataMain.add(str);
   }
   req.setAttribute("mainHeader", mainHeader);
   req.setAttribute("serviceDataMain", serviceDataMain);
   rs = stmt.executeQuery("select * from " + serviceId + "_tbl");
   rsmd = rs.getMetaData();
   col = rsmd.getColumnCount();
   String[] tblHeader = new String[col];
   for (int i = 0; i < col; i++) {
     tblHeader[i] = rsmd.getColumnLabel(i + 1);
   }
   ArrayList<String[]> serviceDatatbl = new ArrayList<String[]>();
   while (rs.next()) {
     String[] str = new String[col];
     for (int i = 0; i < col; i++) {
       str[i] = rs.getString(i + 1);
     }
     serviceDatatbl.add(str);
   }
   req.setAttribute("tblHeader", tblHeader);
   req.setAttribute("serviceDatatbl", serviceDatatbl);
   rs.close();
   con.close();
   return mapping.findForward("success");
 }
 @Override
 public boolean isSatisfiedBy(String o) {
   return CalculateService.contains(getPattern(), getValue(), o);
 }